2001/11/09 by Enzo Marinari, Andrea Pagnani, Federico Ricci-Tersenghi +1 · 2 citations
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Protein Structure and Dynamics #RNA Research and Splicing #RNA and protein synthesis mechanisms #cond-mat.dis-nn #cond-mat.stat-mech #q-bio.QM
paper · pdf · doi:10.1103/physreve.65.041919
published as Phys. Rev. E 65, 041919 (2002) · 20 pages including 9 eps figures
arxiv created 2001/11/09 · openalex publication_date 2002/04/08 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We analyze different microscopic RNA models at zero temperature. We discuss both the most simple model, which suffers a large degeneracy of the ground state, and models in which the degeneracy has been removed in a more or less severe manner. We calculate low-energy density of states using a coupling perturbing method, where the ground state of a modified Hamiltonian, that repels the original ground state, is determined. We evaluate scaling exponents starting from measurements of overlaps and energy differences. In the case of models without accidental degeneracy of the ground state we are able to clearly establish the existence of a glassy phase with theta approximately 1/3. 87.15.Aa, 64.60.Fr